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' H-ARKNEss Bovo', or NEW YoRKgfN. Y

Laim Pawn@ No. `62,812, dated March 12, 1867.'

' IMPROVEMENT `IN OVERILOW BASINS.

TO ALL WII'OM IT MAY CONCERN:l v

Be it known that I, HARKNESS BOYD, of thel city 'and State of NewYork, have invented and made a cer tain new and useful Improvement in Overows for Basins, Water-Closets, &c.; and I do hereby declare the following t-o be a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part of this specication, wherein-'- Figure 1 is a vertical section of my improved basin; and

Figure 2 is a plan of the same.

Similar marks of reference denote the same parts.

Over-Hows for basinshave usually been made by introducing a cluster ofiholes near the top, leading into a pipe that lpasses to a sewer or drain. The holes are in a position where they arebut seldom washed out by the water flowing through them, and they become clogged and more or less stoppedvby dirt and soapyr matter lodged in said holes b y wiping out the basin. Injury often results from a faucet being left open and the Water flowing. over the edges of the basin because the overflow is inadequate. i i v The nature of my said invention consists in 'a siphon 'overflow for a basin, bath tub, or similar article, the cluster of holes to the overflow'pipe being at or near the bottom of the vessel, and the overow pipe extend'- ing up to thedesired highest water level and then descending to thcsewer or drain. v By this construction the water Hows back and forth through the cluster of holes when the basin orvessel is used keeping them clean, and when the overflow becomes operative in consequence of the vessel becoming too full, the siphon action is very powerful in drawing away the Water with rapidity, andcontinues to act until the basin or vessel 'is nearly emptied. v

In the drawing, ais the basin or vessel of any desired size or shape; b is the cluster of holes near the bottom thereof; c is the ascending portion, and d the descending portion, of the siphou overflow pipe, the action thereof being as Abefore mentioned. An ordinary Waste pipe and plug is to be provided for emptying the'vessel, as seen atf. In order to attach the basin to the under side of the marble slab usually employed, I make use of bolts, scre\ving into lead or soft-metal nuts, Acast intoholes in the marble, and I form the ange of the basin with segmental slots at e e e, through which saidbolts are screwed. Thismode of attachment is muchy more reliable than that heretofore employed, because the basin can be cemented directly to the marblev and made vater-tight at this point. i I

What I claim, and desire to secure by. Letters Patent, is-l A-stationary basin or vessel having an, ordinary waste or discharge` plug, in combination with an overflow pipe, opening into said vessel near the bottom thereof', and ascending, as a Siphon, to the desired water level of such basin, as and for the purposes specified. i n

In witness whereof I have hereunto set my signature this 18th day of October, A. D. 1866. v

I HARKNESS BOYD. .A

Witnesses:

GEO. D. WALKER, CuAs. H. SMITH. 

